vulkan: fix wireframe validation error

src/modules/graphics/vulkan/Graphics.cpp

@@ -250,7 +250,6 @@ bool Graphics::setMode(void* context, int width, int height, int pixelwidth, int
 	updatedBatchedDrawBuffers();
 
 	Shader::current = Shader::standardShaders[graphics::Shader::StandardShader::STANDARD_DEFAULT];
-	currentPolygonMode = VK_POLYGON_MODE_FILL;
 	restoreState(states.back());
 	
 	setViewportSize(width, height, pixelwidth, pixelheight);
@@ -428,13 +427,6 @@ void Graphics::setScissor() {
 void Graphics::setWireframe(bool enable) {
 	flushBatchedDraws();
 
-	if (enable) {
-		currentPolygonMode = VK_POLYGON_MODE_LINE;
-	}
-	else {
-		currentPolygonMode = VK_POLYGON_MODE_FILL;
-	}
-
 	states.back().wireframe = enable;
 }
 
@@ -876,6 +868,7 @@ void Graphics::createLogicalDevice() {
 
 	VkPhysicalDeviceFeatures deviceFeatures{};
 	deviceFeatures.samplerAnisotropy = VK_TRUE;
+	deviceFeatures.fillModeNonSolid = VK_TRUE;
 
 	VkDeviceCreateInfo createInfo{};
 	createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
@@ -1176,7 +1169,7 @@ void Graphics::prepareDraw(const VertexAttributes& attributes, const BufferBindi
 	configuration.vertexAttributes = attributes;
 	configuration.shader = (Shader*)Shader::current;
 	configuration.primitiveType = primitiveType;
-	configuration.polygonMode = currentPolygonMode;
+	configuration.wireFrame = states.back().wireframe;
 	configuration.blendState = states.back().blend;
 	configuration.colorChannelMask = states.back().colorMask;
 	configuration.winding = states.back().winding;
@@ -1319,7 +1312,7 @@ VkPipeline Graphics::createGraphicsPipeline(GraphicsPipelineConfiguration config
 	rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
 	rasterizer.depthClampEnable = VK_FALSE;
 	rasterizer.rasterizerDiscardEnable = VK_FALSE;
-	rasterizer.polygonMode = configuration.polygonMode;
+	rasterizer.polygonMode = Vulkan::getPolygonMode(configuration.wireFrame);
 	rasterizer.lineWidth = 1.0f;
 	rasterizer.cullMode = Vulkan::getCullMode(configuration.cullmode);
 	rasterizer.frontFace = Vulkan::getFrontFace(configuration.winding);

src/modules/graphics/vulkan/Graphics.h

@@ -28,7 +28,7 @@ struct GraphicsPipelineConfiguration {
 	VertexAttributes vertexAttributes;
 	Shader* shader = nullptr;
 	PrimitiveType primitiveType = PRIMITIVE_MAX_ENUM;
-	VkPolygonMode polygonMode = VK_POLYGON_MODE_FILL;
+	bool wireFrame;
 	BlendState blendState;
 	ColorChannelMask colorChannelMask;
 	Winding winding;
@@ -230,7 +230,6 @@ private:
 	// just like batchedDrawBuffers we need a vector for each frame in flight.
 	std::vector<std::vector<std::function<void()>>> cleanUpFunctions;
 	graphics::Texture* currentTexture = nullptr;
-	VkPolygonMode currentPolygonMode = VK_POLYGON_MODE_FILL;
 
 	// render pass variables.
 	VkFormat currentFramebufferOutputFormat = VK_FORMAT_UNDEFINED;

src/modules/graphics/vulkan/Vulkan.cpp

@@ -481,6 +481,14 @@ VkImageViewType Vulkan::getImageViewType(TextureType textureType) {
 	}
 }
 
+VkPolygonMode Vulkan::getPolygonMode(bool wireframe) {
+	if (wireframe) {
+		return VK_POLYGON_MODE_LINE;
+	} else {
+		return VK_POLYGON_MODE_FILL;
+	}
+}
+
 void Vulkan::cmdTransitionImageLayout(VkCommandBuffer commandBuffer, VkImage image, VkImageLayout oldLayout, VkImageLayout newLayout,
 	uint32_t baseLevel, uint32_t levelCount, uint32_t baseLayer, uint32_t layerCount) {
 	VkImageMemoryBarrier barrier{};

src/modules/graphics/vulkan/Vulkan.h

@@ -43,6 +43,7 @@ public:
 	static VkCullModeFlags getCullMode(CullMode);
 	static VkImageType getImageType(TextureType);
 	static VkImageViewType getImageViewType(TextureType);
+	static VkPolygonMode getPolygonMode(bool wireframe);
 
 	static void cmdTransitionImageLayout(
 		VkCommandBuffer, VkImage, VkImageLayout oldLayout, VkImageLayout newLayout,